Mine and other car



SePt- 27 1927' A. H. STOW MINE WD OT HER CAR Original Filed Nov. 15, 1920 om@ .w am@ www@ Patented Sept. 27, 1927.

UNITED STATES .ummm um' srow,

1,643,687 PATENT ori-uca.

F CHARLESTON, WEST VIRGINIA, ASSIGNOB T0 EDITH S. WHITE, 0F CALDWELL, NEW JERSEY.A

MINE AND OTHER GAR.

Original application illed November 15, 1920, Serial No. 424,182. Divided and this application iiled September 18, 1923.

This invention relates to certain improvements in and relating to mine cars and the like; and the objects and nature of the invention will be readily understood by those skilled in the art in the light of the following explanation of the accompan ing `drawings illustrating what I now be ieve to be the preferred mechanical expressions or embodiments from among other forms, constructions andarrangements within the spirit and scope of the invention.

This application is filed as a division of my pendingapplication Serial No. 424,132 for improvements in mine or other cars, l5 and for this application, I claim the date of filing of said parent case, namely, November 15, 1920.

Mine cars of a certain new type consist of a relatively light and iimsy lading holding body supported by a strongly constructed tractionftruck, the sides of which consist of metal beams which in turn consist of upper and lower horizontal members andl vertical connecting members; with rotary wheel axles passing through the vertical connecting members, and thus between the upper and lower horizontal members of the said metal beams which form the longitudinal supporting side sills of the said cars.

The removal of a suiiicient amount of the metal of the vertical connecting members of the longitudinal supporting side sills, for the passage of the wheel axles, necessarily somewhat weakens the side sills. An object of the present invention, is to provide a new and improved axle boxing, which while properly designed as an axle boxing, will at the same time reinforce the longitudinal supporting side sills, in an eiicient and practical manner, under all the varying condi- .tions of practice.

lVith this and other objects in view, as hereinafter pointed out, the invention consists incertain novel features in construction and in combinations and arrangements as more fully and particularly set forth and pointed out hereinafter.

Referring to the accompanyin drawings:

Fig. 1 is a side view of one orm of end dump car, of said new type, showing my improved axle boxings in working position.

Fig. 2 is a transverse vertical section along the line 2-2, Fig. 1.

,the strains resulting from the weight of the Serial N0. 663,371.

Fig. 3 is a detail side elevation of one 55 of the side sills showing the axle boxings and indicating the axles.

Fig. 4 is a broken side view, on a larger scale, of a portion of the side sill, with the. axle boxing in working position.

Fig. 5 is a view slmilar to Fig. 4, showing an internal reinforcing plate which may be ,used in conjunction with the axle boxing proper.

Fig. 6 is a section .along the line 6 6, Fig. 4. v

Fig. 7 is a similar section of a larger side sill showing variation in details of axle boxing.

Fg. 8 is a similar section through one of the end rivets, of the'style of boxing lshown in Fig. 7.

The upper and relatively light and flimsy lading holding body 1, of the car illustrated, is of thin sheet metal but may be made of wood plank, and is supported and carried by the longitudinal supporting side sills 2; the flat strap iron belts or binders 3, serving to suitably connect the said holding body and sills. The lading supporting bottom is also fixed to and supported by said side sills.

My side sill boxing, may be said to comprise the rotary axle boxing proper 4, Fig. 6, and the vertical boxing face or attaching plate or member 4', Fig. 4, the said face plate being integral with boxing element 4.

. The side sills transmit to the boxings,

lading, the lading holding body, and of the traction truck itself, even if the car is not moving. If the car, when moving at a high velocity, is brought to a sudden stop, as occurs in the dumping operation, there are, in addition to the strains just mentioned, certain other strains, considerable in amount, due to the momentum-of the moving mass, which are also transmitted to the axle boxings from the side sills. these two sets of strains, is amply suliicient to result in the gradual shearing on of the boxing rivets, were these rivets the only means of retaining the boxings in their wrking positions with respect to the side s1 s.

In addition, in mining practice, the adjoining ends of meeting track rails are fre- The sum total of 10U iquently of diiferentelevations. As the carwheels pass from the high end of one rail, to the low end of the next rail, or vice versa, `there is a considerable vertical strain in addition to the dead weight of the car, which also tends to shear boxing rivets.

The strains transmitted by the vertical members of the vside sills or side beams, should be transmitted to the center of the axle bearing, as nearly as otherwise practical, Ain order that the journal bearing in the axle boxing may bear throughout it's length with approximately equal pressure on Vthe car axle. The boxing, therefore, will be herein termed a balanced boxing, although not necessaril an exactly equally balanced boxing. As s own in Fig. 6, the axlebearing 4, is extended through the web plate 2'. of the side beam 2, sufficiently, that the sai web late is at least approximately midway o the said bearing.

lBy placing the side sills as near the wheels as otherwise practicable, the maxim'um lading space between the side sills is thus attained. If in Fig. 6, for example, the 'vertical web 2 of the side sill was located at the right hand end of the boxing proper 4, the loss in lading space would be material, and the eccentric loading of the boxing would be seriously objectionable.

Where parts are secured together by rivets, there is of necessity possibility of slight relative movement in a direction at right angles to the axis of the rivet. The rivet is applied to the perforations in the arts to be secured while its shank is -red hot and in an expanded condition, and in order that the expanded shank may be readily inserted in the rivet hole, the latter must necessarily be still larger than the expanded shank. After the rivet is headed, and the shank is again cooled, the diameter of the shank is less than the diameter of the perforations receiving vthe shank, leaving possibility of lateral play as the grip of the rivet heads is inadequate to with- 'i stand substantial strains at rlght angles to the Shanks of the rivets. The axle boxings are preferably made from cast steel to stand the strains and stresses to which they are subjected, and fitted and lili riveted to the side sills in such manner as to. reduce possibility of rivet shearing to the minimum and to actually abut and contact with the sills for the reception of stresses and strains therefrom. In order to reduce the number ofworking parts to the minimum and for purposes of strength, the boxtop and bottom edges thereof, usually pro-v jecting outwardly' at the outer face the i vides a longitudinallyelongated inner vertical face to fit the vertical face ofthe side sill connecting member, and longitudinal top and bottom edges or faces to iit the under and upper faces of the top and bottom iianges of the side sill.

` As will be evident from Figs. 1,3 and 4, the four securing rivets a', nearest the axle bearing proper 4, may obviously well enough serve to hold the attaching face plate 4', in working position, particularly as the axle bearing proper` is a balanced bearing. The two rivets a, furthest from the axle bearing proper, may therefore, obviously, be looked upon more particularly as reinforcing rivets, to help compensate for the metal removed from the side beam for the insertion of the axle bearing proper.

As shown by Figs. 4 and 6, the upper edge of the boxing face plate 4, bears against the under side of the outer upper side sill flange 2. In this way all vertical strains are transmitted direct to the said upper flange,

thus relieving the rivets -of all Vertical strains. As shown in Fig. 6, the axleboxing proper 4,extends through the vertical web 2 of the. side sill, thus giving, near enough, an equally balanced boxing, without undue loss of lading capacity. This extension of the axle boxing proper, serves to retain the boxing in the exact position desired, so that .my improved boxing may be said to interlock with the side sill.

As will also be seen from Figs. 4 and 6, the lower edge of the boxing face plate 4 bearsagainst the upper side of the lower outer flange 2, of the side sill. Owing to the position lof the said lower vouter flange, this lower bearing edge or face, only serves to keep the boxing tightly in its desired vertical position, without strain on the rivets to that end.v

These horizontal bearing faces evidently serve most useful purposes in the function of these boxings, in that they take care' of the vertical strains, entirely independently of the rivets.

The axle bearing proper 4, Fig. 6, has preferably a broad wheel bearing or outside vertical face, as shown, which evidently requires the single-vertical v.attaching face, 4 Fig. 4, to be on the outside of the side sill, at which position'it is accessible for inspec- Iall three said parts being near enough of equal lengths. It therefore follows that either of the overhanging parts of the side sills, will only carry, roughly, about one fourth the load that the central part of the up er and lower members called the flanges, an vweb plates. I however do not wish to be restricted to the precise details of-the boxing shown..

It will be evident from the foregoing explanation, that the vertical vattaching face plates or members of the boxing's have a double function, namely; of serving as attaching faces, and also, in conjunction with the boxing proper of reinforcing the side said sills will carry, the weakest part of a\sills, to compensate for the metal that is structure of course controllingthe design. In removed from the side sills to provide holes so far as this overhanging load is concerned, both the metal in thev side sill and in the boxing, immediately over the center of the axle, may be said to be in tension, whereas the metal immediately below 'the center of the axle is in compression. Where the metal kin compression canl not readily buckle, as

in this case, the metal in compression will be considerably stronger than the same amount, the same number of square inches, for example, in tension. For light loads, the difference would not be noticeable in the usual Patent Oflice drawings.

Where, however, much heavier cars are to be constructed, deeper side sills will be required, for instance see Fig. 7. In such cases, the vertical attaching faces 4 will still be extended upward so that their u per edges will bear against the under side ci) the outer upper side sill flange 2. This will incidentally give in the boxing, additional metal in tension, which is over the axle.

The position of the center of the axle boxing midway vertically between the upper and lower flanges, is both convenient for the urpose of illustration and under some con itions meets the requirements of practice, but under other conditions this position will have to be varied to best meet the practical requirements of these other conditions. Raising the side sill with respect to the axle, will evidently increase the amount of metal in tension, while at the same time, decreasing the amount of metal in compression. The relative elevation of the side sill may make it necessary to add additional metal in compression. As the boxing acts as a reinforcement member to the'side sill, it is the sum total, for example immediately under the center of the axle, of the metal remaining in the side sill, at the point indicated, together with the amount of metal in the boxing that gives the strength of the beam. As the amount of metal in the side sill becomes less, as for instance in the case of a larger axle, the amount of metal in the boxing must be correspondingly increased.

My improved boxing is shown as applied to an I-beam, both ,as convenient for the purpose of illustration, and also as typical of metal beams which consist of horizontal for the passage of the projecting portions of the boxings.

`There are also possible certain mechanical variations,`as for instance, the use of a special wrought inner reinforcing plate 6, Figs. 5 and 6, inside the side sills, held in place by the boxing rivets a, and fitting the inner extension or hub of the axle boxing. This evidently throws the rivets into double instead of single shear. A relativel slight increase however, in the number o rivets, and of the metal in the boxing, will compensate for the special reinforcing plate, thus eliminating four extra parts, for the car.

In somewhat the same Way, the boxing may be made of two separate parts, suit ably united, as for instance, the outside boxing 4, Fig. 7, and the inside boxing 4". This is evidently, near enough, a balanced boxing, and requires less of the web of the I-beam to be out away. The end of the outer boxing 4", Fig. 8, may have an` inside bushin 4"extending through the vertical web o the side sill and through the inner boxing face plate 4, thus still making an interlocking boxing. If the boxings are of cast iron, a wrought bushing 7, of sufficient length, and wrought washer 8, may be added to take care of the cooling strains of the rivet 9.

The new type mine car herein referred to, may be termed a side sill supported mine car, for the reason that the entire lading, the Aentire lading body, and all the remaining parts of the car are carried or supported by the longitudinal' side sills, parallel to the track, and shown between the wheels, although the sills can also be placed outside the wheels.

In mining parlance, what is termed the wing type mine car, is any car in which the upper portion of the lading body l, Fig. 2, extends over or overhangs the wheels. This overhang is made rectangular, in the form shown by Fig. 2, in order to gain the maximum lading space. lVhere, however, the overhang consists of .sides sloping toward he center of thecar, as in the case of all drop bottom cars, the car is still technically a wing type car.

As previously explained, the horizontal vertical connecting members called the edges of the boxing face plates, bear against the adjacent side sill top and bottom flanges, and are therefore technically, horizontal bearing faces although in this instance relatively narroW, but of considerable length. The position, area, width and breadth, of the horizontal boxing sill bearing faces may evidently be varied to 'meet the requirements of practice. These bearing faces may be termed the horizontal boxing-sill-bearing faces, as distinguished from the vertical attaching faces.

The car Wheels l0, Fig. 2, support the rotary car axles v5. I am thus enabled to support my lading bottom 11, by means of the bottom {ianges 2", of the side beam 2, and thus below the plane passing through the tops of the car- Wheel axles, instead of v above the car Wheel axles, as in the old type mine cars. My lading bottom will therefore be also herein termed a sub-axle lading bottom, which term is to be understood to include any lading bottom, or any portion of any lading bottom, which is below the plane passing through the tops of the car Wheel axles. i

It is evident that various changes, modifications, variations, and departures might be resorted to Without departingl from the spirit and scope of my invention, and hence I do not Wish to limit myself to the exact disclosures hereof.

lVhat I claim is 1. In mine and-other cars, the combination of a side beam, together with a rotary axle journal boxing consisting of an integral structure including an axle yjournal bearing extending through the vertical member of the side beam, said axle boxing alsoincluding an attaching face adapted to also act as a side beam reinforcing member.

2. In mine and other cars, the combination of a side beam, together with -a rotaryaxle journal boxing consisting of an integral structure including an axle journal bearing extending through the vertical member of the side beam, said axle boxing also including a vertical attaching face adapted to also act as a side beam reinforcing member.

3. In mine and other cars, the combination of a side beam, a'balanced rotary axle journal boxing consisting of an integral structure including an attaching and side' beam reinforcing face, together with a car Wheel rotary axle in said axle journal boxing.

Il. In mine and other cars, the combination of aside beam, a balanced rotary axle journal boxing consisting of an integrall structure including a vertical' attaching and side beam reinforcing face, a car wheel rotary axle 1n said axle journal boxing, to-

gether with a stationary lading bottom be-A bottom. 4 l

6. In mine and other cars, the combina.- tion of a side beam, together with a balanced rotary axle journal boxing consisting of an integral structure including a vertical attaching and side beam reinforcing face, said axle journal boxing being secured to said side beam intermediate the top and bottom portions of said sidebeam.

7. In mine and othercars, the combination of a balanced rotary axle journal .boxing consisting of an integral structure including an attaching and side beam reinforcing face, a car Wheel rotary axle in said boxing, together With a side beam having a continuous bottom portion under said axle journal boxing. 1

8. In mine and other cars, the combination vof a balanced rotary axle journal boxing consisting of an integral structure including an attaching face also serving as a side beam reinforcing member, together With a side beam having a continuous bottom flange under said axle journal boxing, said boxing being secured to said side beam above said bottom flange.

9. In mine and other cars, the combination of a balancedrotary axle journal boxing consisting'jof an integral structure in cluding an attaching and side' beam reinforcing face, said.` axle boxinfr being also provided with a Wheel bearing face, with a longitudinal beam having a continuous bottom portion under 'said axle journal boxing. v

l0. In mine and other cars', the combination of a balanced rotaryv axle-journal boxing consisting of an integral structure including an attaching and side beam reinforcing face, said axle boxing being also rovided with an outside Wheel bearing ace, together with a longitudinal beam having a continuous bottom portion under said axle journal boxing.

11. In mine and other cars, the combinatogether tion of a balanced rotary axle journal boxing consisting of an integralstructure including an attaching face also serving as a side beam reinforcing member, together with a longitudinal beam having a continuous bot-tom portion under said axle journal box4 1 4 day of September, 1923.

' AUDLEY HART STOW.

Signed at Charleston, W. Virginia, this 

